Montresor can refer to any of the following:
Literature
- Montresor, character in The Cask of Amontillado
People
- Claude de Bourdeille, comte de Montrésor (c. 1606-1663), French aristocrat
- James Gabriel Montresor (1704-1776), British military engineer
- John Montresor (1736-1799), British military engineer and cartographer
- Beni Montresor (1926-2001), artist and illustrator
- Maxminio Montresor (1980- ), Brazilian football goalkeeper
Geography
- Montrésor, a commune in the Indre-et-Loire department in central France
- Château de Montrésor, a medieval castle in that commune
- Randall's Island, an island in the East River in New York City, was in the 18th century called Montresor's Island